include[HTML_REMOVED]
include[HTML_REMOVED]
include[HTML_REMOVED]
using namespace std;
int main()
{
double a,b,c,s,y,t,z,ch;
double d=3.14159;
cin>>a>>b>>c;
s=(1/2.0)ac;
y=dcc;
t=((a+b)c)/2.0;
z=bb;
ch=a*b;
printf(“TRIANGULO: %.3lf\n”,s);
printf(“CIRCULO: %.3lf\n”,y);
printf(“TRAPEZIO: %.3lf\n”,t);
printf(“QUADRADO: %.3lf\n”,z);
printf(“RETANGULO: %.3lf\n”,ch);
}